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From: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
Date: Wed, 12 Jun 2024 10:02:36 +0200
Subject: [PATCH v2 6/6] riscv: dts: sophgo: Add LicheeRV Nano board device
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Message-Id: <20240612-sg2002-v2-6-19a585af6846@bootlin.com>
References: <20240612-sg2002-v2-0-19a585af6846@bootlin.com>
In-Reply-To: <20240612-sg2002-v2-0-19a585af6846@bootlin.com>
To: Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>, 
 Conor Dooley <conor+dt@kernel.org>, 
 Paul Walmsley <paul.walmsley@sifive.com>, 
 Chen Wang <unicorn_wang@outlook.com>, Inochi Amaoto <inochiama@outlook.com>, 
 Chao Wei <chao.wei@sophgo.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>, Palmer Dabbelt <palmer@dabbelt.com>, 
 Samuel Holland <samuel.holland@sifive.com>, 
 Thomas Gleixner <tglx@linutronix.de>, 
 Daniel Lezcano <daniel.lezcano@linaro.org>, 
 Thomas Petazzoni <thomas.petazzoni@bootlin.com>, 
 =?utf-8?q?Miqu=C3=A8l_Raynal?= <miquel.raynal@bootlin.com>, 
 linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, 
 linux-riscv@lists.infradead.org, 
 Thomas Bonnefille <thomas.bonnefille@bootlin.com>

LicheeRV Nano B [1] is an embedded development platform based on the SOPHGO
SG2002 chip, the B(ase) version is deprived of Wifi/Bluetooth and Ethernet.

Add only support for UART and SDHCI.

Link: https://wiki.sipeed.com/hardware/en/lichee/RV_Nano/1_intro.html [1]

Signed-off-by: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
---
 arch/riscv/boot/dts/sophgo/Makefile                |  1 +
 .../boot/dts/sophgo/sg2002-licheerv-nano-b.dts     | 53 ++++++++++++++++++++++
 2 files changed, 54 insertions(+)

diff --git a/arch/riscv/boot/dts/sophgo/Makefile b/arch/riscv/boot/dts/sophgo/Makefile
index 57ad82a61ea6..47d4243a8f35 100644
--- a/arch/riscv/boot/dts/sophgo/Makefile
+++ b/arch/riscv/boot/dts/sophgo/Makefile
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_SOPHGO) += cv1800b-milkv-duo.dtb
 dtb-$(CONFIG_ARCH_SOPHGO) += cv1812h-huashan-pi.dtb
+dtb-$(CONFIG_ARCH_SOPHGO) += sg2002-licheerv-nano-b.dtb
 dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-milkv-pioneer.dtb
diff --git a/arch/riscv/boot/dts/sophgo/sg2002-licheerv-nano-b.dts b/arch/riscv/boot/dts/sophgo/sg2002-licheerv-nano-b.dts
new file mode 100644
index 000000000000..d011fb15b097
--- /dev/null
+++ b/arch/riscv/boot/dts/sophgo/sg2002-licheerv-nano-b.dts
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2024 Thomas Bonnefille <thomas.bonnefille@bootlin.com>
+ */
+
+/dts-v1/;
+
+#include "sg2002.dtsi"
+
+/ {
+	model = "LicheeRV Nano B";
+	compatible = "sipeed,licheerv-nano-b", "sipeed,licheerv-nano", "sophgo,sg2002";
+
+	aliases {
+		gpio0 = &gpio0;
+		gpio1 = &gpio1;
+		gpio2 = &gpio2;
+		gpio3 = &gpio3;
+		serial0 = &uart0;
+		serial1 = &uart1;
+		serial2 = &uart2;
+		serial3 = &uart3;
+		serial4 = &uart4;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&osc {
+	clock-frequency = <25000000>;
+};
+
+&sdhci0 {
+	status = "okay";
+	bus-width = <4>;
+	no-1-8-v;
+	no-mmc;
+	no-sdio;
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&uart1 {
+	status = "okay";
+};
+
+&i2c0 {
+	status = "okay";
+};

-- 
2.45.2